English verb conjugation
CAN GULL

Regular verb: gull - gulled - gulled

Affirmation

Simple form	V-ing form
I can gull you can gull he can gull we can gull you can gull they can gull	I can be gulling you can be gulling he can be gulling we can be gulling you can be gulling they can be gulling
Perfect	V-ing perfect
I can have gulled you can have gulled he can have gulled we can have gulled you can have gulled they can have gulled	I can have been gulling you can have been gulling he can have been gulling we can have been gulling you can have been gulling they can have been gulling

Negation

Simple form	V-ing form
I can't gull you can't gull he can't gull we can't gull you can't gull they can't gull	I can't be gulling you can't be gulling he can't be gulling we can't be gulling you can't be gulling they can't be gulling
Perfect	V-ing perfect
I can't have gulled you can't have gulled he can't have gulled we can't have gulled you can't have gulled they can't have gulled	I can't have been gulling you can't have been gulling he can't have been gulling we can't have been gulling you can't have been gulling they can't have been gulling

Interrogative form

Simple form	V-ing form
can I gull? can you gull? can he gull? can we gull? can you gull? can they gull?	can I be gulling? can you be gulling? can he be gulling? can we be gulling? can you be gulling? can they be gulling?
Perfect	V-ing perfect
can I have gulled? can you have gulled? can he have gulled? can we have gulled? can you have gulled? can they have gulled?	can I have been gulling? can you have been gulling? can he have been gulling? can we have been gulling? can you have been gulling? can they have been gulling?

Interro-negative form

Simple form	V-ing form
can't I gull? can't you gull? can't he gull? can't we gull? can't you gull? can't they gull?	can't I be gulling? can't you be gulling? can't he be gulling? can't we be gulling? can't you be gulling? can't they be gulling?
Perfect	V-ing perfect
can't I have gulled? can't you have gulled? can't he have gulled? can't we have gulled? can't you have gulled? can't they have gulled?	can't I have been gulling? can't you have been gulling? can't he have been gulling? can't we have been gulling? can't you have been gulling? can't they have been gulling?